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Order in overclocking ram, cpu, and gpu

post #1 of 43
Thread Starter 
In overclocking these three components, which should come first? CPU, RAM, or GPU? Is it fine to overclock the RAM first and then the CPU?
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post #2 of 43
If 3D benching is your goal, then in benches like 3dmark11, then the GPU represents about 35-45% of total OC. And even less using 3dmark Vantage .RAM only represents about 5%.
Also, in 3d benching you'll find that you most likely won't be able to run at max CPU OC. E.g. I can run 2d benches at 5.1-5.2GHZ on my current set-up. But in 3dmark11 and 3dmark Vantage I can only run the CPU at 4.9GHz. Anyway, CPU OC will most likely impact performance the most, followed by GPU, then RAM. And only extreme, world record, LN2 benchers consider OCing RAM.
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post #3 of 43
Thread Starter 
Quote:
Originally Posted by OS-Wiz View Post

If 3D benching is your goal, then in benches like 3dmark11, then the GPU represents about 35-45% of total OC. And even less using 3dmark Vantage .RAM only represents about 5%.
Also, in 3d benching you'll find that you most likely won't be able to run at max CPU OC. E.g. I can run 2d benches at 5.1-5.2GHZ on my current set-up. But in 3dmark11 and 3dmark Vantage I can only run the CPU at 4.9GHz. Anyway, CPU OC will most likely impact performance the most, followed by GPU, then RAM. And only extreme, world record, LN2 benchers consider OCing RAM.

Ok. When you say you can "run" your CPU OC higher in 2D benches compared to 3D benches, are you saying that 3D benches demand less CPU power or that they tend to fail at higher CPU OC's?

My goal, though, is overclocking the three main components (CPU, GPU, RAM). Actually, my question is which should come first when I plan on overclocking all of them. I know the impact of RAM is so small but still I want to overclock it. My main concern is the order in which they should be tinkered with.
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post #4 of 43
Quote:
Originally Posted by kevindd992002 View Post

Ok. When you say you can "run" your CPU OC higher in 2D benches compared to 3D benches, are you saying that 3D benches demand less CPU power or that they tend to fail at higher CPU OC's? Yes

My goal, though, is overclocking the three main components (CPU, GPU, RAM). Actually, my question is which should come first when I plan on overclocking all of them. I know the impact of RAM is so small but still I want to overclock it. My main concern is the order in which they should be tinkered with.
CPU, GPU, RAM, in that order.
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post #5 of 43
Thread Starter 
Quote:
Originally Posted by OS-Wiz View Post

CPU, GPU, RAM, in that order.

What is the reason behind this order?

Also, when OCing CPUs usually we use softwares like Prime95. How then will we know that it will fail if we don't test it with 3D bench programs like Heaven and 3DMarks? Or is it recommended to run these 3D programs when looking for CPU stability also?
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post #6 of 43
Quote:
Originally Posted by kevindd992002 View Post

What is the reason behind this order?

Also, when OCing CPUs usually we use softwares like Prime95. How then will we know that it will fail if we don't test it with 3D bench programs like Heaven and 3DMarks? Or is it recommended to run these 3D programs when looking for CPU stability also?

CPU and GPU can be interchanged IMO, however I'd do as the above poster said and go CPU first. It is the most important piece in your system and you want to make sure that your OC on it is rock-solid before you continue. Definitely leave RAM for last.

Heaven and 3DMarks are not really necessary to run for CPU stability because they do not stress the CPU anywhere near as much as Prime95 or Intel Burn Test.
post #7 of 43
Quote:
Originally Posted by OS-Wiz View Post

CPU, GPU, RAM, in that order.

Depends what you are doing. For gaming, I'd say GPU, CPU, then RAM. You are much more likely to be GPU-limited than CPU.
post #8 of 43
Quote:
Originally Posted by Cole S View Post

Quote:
Originally Posted by kevindd992002 View Post

What is the reason behind this order?

Also, when OCing CPUs usually we use softwares like Prime95. How then will we know that it will fail if we don't test it with 3D bench programs like Heaven and 3DMarks? Or is it recommended to run these 3D programs when looking for CPU stability also?

CPU and GPU can be interchanged IMO, however I'd do as the above poster said and go CPU first. It is the most important piece in your system and you want to make sure that your OC on it is rock-solid before you continue. Definitely leave RAM for last.

Heaven and 3DMarks are not really necessary to run for CPU stability because they do not stress the CPU anywhere near as much as Prime95 or Intel Burn Test.


agreed, i would OC your CPU and get it stable with P95 but you can OC your GPU if you want with your CPU at stock. no real order with thoose two IMO
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post #9 of 43
Thread Starter 
Quote:
Originally Posted by Cole S View Post



CPU and GPU can be interchanged IMO, however I'd do as the above poster said and go CPU first. It is the most important piece in your system and you want to make sure that your OC on it is rock-solid before you continue. Definitely leave RAM for last.

Heaven and 3DMarks are not really necessary to run for CPU stability because they do not stress the CPU anywhere near as much as Prime95 or Intel Burn Test.

Exactly, which is why I'm wondering what makes 3D benches fail at higher CPU OC rather than 2D benches?
Quote:
Originally Posted by Forceman View Post

Depends what you are doing. For gaming, I'd say GPU, CPU, then RAM. You are much more likely to be GPU-limited than CPU.
Quote:
Originally Posted by stubass View Post

agreed, i would OC your CPU and get it stable with P95 but you can OC your GPU if you want with your CPU at stock. no real order with thoose two IMO

Thanks. Will higher CPU OC limit the RAM OC capability and vice versa?
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post #10 of 43
Quote:
Originally Posted by kevindd992002 View Post

Thanks. Will higher CPU OC limit the RAM OC capability and vice versa?

i went through reading the 3dmark11 thread scores. yes the cpu overclock affects the overclockability of the ram and vice versa.
contrary to what os-wiz said, ram is really damned important in some benches. but as far as i can see, only above the 1866 speeds. most were getting insane increases only after 2133. i dunno though, just my observations.
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